.section-heading {
  margin-bottom: var(--space-xl);
}

.section-heading p {
  max-width: 720px;
}

.section-heading-split {
  align-items: end;
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.42fr);
}

.eyebrow,
.panel-kicker {
  color: var(--color-gold);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.card,
.feature-card,
.metric,
.button,
.about-note {
  background: rgba(255, 250, 242, 0.88);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-small);
  padding: clamp(1.25rem, 3vw, 2rem);
  transform: translate3d(0, 0, 0);
  transition: var(--transition), filter 180ms ease;
}

.card:hover,
.feature-card:hover,
.metric:hover,
.button:hover,
.about-note:hover {
  border-color: rgba(32, 180, 134, 0.42);
  box-shadow:
    0 24px 54px rgba(89, 67, 38, 0.16),
    0 0 0 1px rgba(32, 180, 134, 0.16),
    0 0 38px rgba(32, 180, 134, 0.18);
  filter: saturate(1.06);
  transform: perspective(900px) translateY(-7px) rotateX(1.2deg) rotateY(-1deg) scale(1.01);
}

.feature-card {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
}

.research-card {
  align-items: start;
}

.research-card-heading {
  grid-column: 1;
}

.research-card-meta {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.research-card-meta .status-pill {
  margin: 0;
}

.paper-link {
  align-items: center;
  border-bottom: 1px solid rgba(32, 180, 134, 0.35);
  color: #13795b;
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 720;
  gap: 0.25rem;
  padding: 0.42rem 0.15rem;
  text-decoration: none;
  transition: var(--transition);
}

.paper-link:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  transform: translateY(-2px);
}

.research-card-metrics {
  grid-column: 2;
}

.research-card-body {
  column-gap: clamp(1.5rem, 4vw, 3rem);
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.6fr);
}

.research-card-body > * {
  grid-column: 1 / -1;
  max-width: 72rem;
}

.research-card-body p {
  max-width: 72rem;
}

.feature-card h3 {
  font-size: clamp(1.55rem, 3vw, 2.35rem);
}

.button {
  align-items: center;
  border-radius: 999px;
  display: inline-flex;
  font-weight: 720;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.7rem 1.1rem;
  text-decoration: none;
}

.button-primary {
  background: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-surface);
}

.button-primary:hover {
  background: var(--accent-green);
  border-color: var(--accent-green);
  color: var(--color-text);
}

.button-secondary {
  background: var(--color-surface);
  color: var(--color-text);
}

.button-secondary:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.tag-list,
.metric-list,
.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  list-style: none;
  margin: var(--space-md) 0 0;
  padding: 0;
}

.tag-pill,
.status-pill {
  background: linear-gradient(135deg, var(--color-surface-strong), rgba(234, 216, 166, 0.35));
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text);
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.2;
  padding: 0.42rem 0.72rem;
  text-transform: capitalize;
  transition: var(--transition);
}

.tag-pill:nth-child(4n + 1) {
  background: var(--accent-green-soft);
  border-color: rgba(32, 180, 134, 0.22);
  color: #13795b;
}

.tag-pill:nth-child(4n + 2) {
  background: var(--accent-blue-soft);
  border-color: rgba(83, 123, 134, 0.2);
  color: #587782;
}

.tag-pill:nth-child(4n + 3) {
  background: var(--accent-coral-soft);
  border-color: rgba(192, 86, 33, 0.16);
  color: #c05621;
}

.tag-pill:nth-child(4n) {
  background: var(--accent-purple-soft);
  border-color: rgba(125, 105, 143, 0.2);
  color: #756480;
}

.tag-pill:hover,
.status-pill:hover {
  transform: translateY(-2px);
}

.engagement-panel {
  align-items: center;
  background: rgba(255, 250, 242, 0.72);
  border: 1px solid rgba(32, 180, 134, 0.2);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-md);
  grid-template-columns: minmax(0, 1fr) auto;
  margin-top: var(--space-xl);
  padding: clamp(1rem, 2.5vw, 1.4rem);
}

.engagement-copy .panel-kicker {
  margin-bottom: 0.35rem;
}

.engagement-copy h4,
.engagement-copy h2 {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  margin-bottom: 0.35rem;
}

.engagement-copy p:not(.panel-kicker) {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.55;
  margin: 0;
}

.engagement-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: flex-end;
}

.engagement-link {
  margin-top: 0 !important;
  min-height: 2.85rem;
  white-space: nowrap;
}

.engagement-panel-note {
  margin-top: clamp(2rem, 6vw, 3.5rem);
}

@media (max-width: 760px) {
  .engagement-panel {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .engagement-actions {
    justify-content: flex-start;
  }

  .engagement-actions > * {
    flex: 1 1 100%;
    width: 100%;
  }
}

@media (max-width: 760px) {
  .section-heading-split {
    align-items: start;
    grid-template-columns: 1fr;
  }
}

.metric {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  flex: 1 1 180px;
  padding: var(--space-md);
}

.metric strong {
  display: block;
  font-size: 1.65rem;
  line-height: 1.1;
}

@media (max-width: 760px) {
  .feature-card {
    grid-template-columns: 1fr;
  }

  .research-card-heading,
  .research-card-metrics,
  .research-card-body {
    grid-column: auto;
  }

  .research-card-body {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }
}